[et_pb_section fb_built=”1″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.23.1″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n
J. \u0160imkanin from our Institute was invited to participate in a unique project DRESDYN<\/a>, coordinated by F. Stefani and A. Giesecke from the German Helmholtz-Zentrum Dresden-Rossendorf. The project deals with a precession-driven (geo)dynamo experiment. J. \u0160imkanin has been involved in studies aiming at more precise specification of parameter ranges in which the occurrence of dynamo action is most likely. A large-scale water hydrodynamic experiment is scheduled in 2024, and a large-scale liquid sodium dynamo experiment in 2025.<\/p>\n The precession-driven dynamo experiment within the project DRESDYN (source: HZDR)<\/em><\/p>\n [\/et_pb_text][et_pb_gallery gallery_ids=”37289,37287″ posts_number=”2″ dbdb_version=”3.8.9″ show_title_and_caption=”off” show_pagination=”off” _builder_version=”4.23.1″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_gallery][et_pb_text _builder_version=”4.23.1″ background_size=”initial” background_position=”top_left” background_repeat=”repeat” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n Link to the related papers:<\/p>\n http:\/\/doi.org\/10.1088\/1367-2630\/ac3c0f<\/a> http:\/\/doi.org\/10.1063\/5.0134562<\/a> J\u00e1n \u0160imkanin<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" J. \u0160imkanin from our Institute was invited to participate in a unique project DRESDYN, coordinated by F. Stefani and A. Giesecke from the German Helmholtz-Zentrum Dresden-Rossendorf. The project deals with a precession-driven (geo)dynamo experiment. J. \u0160imkanin has been involved in studies aiming at more precise specification of parameter ranges in which the occurrence of dynamo […]<\/p>\n","protected":false},"author":28,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":" J\u00e1n \u0160imkanin z GF\u00da se pod\u00edl\u00ed na unik\u00e1tn\u00edm experimentu, kter\u00fd prob\u00edh\u00e1 v Helmholtz-Zentru Dresden-Rossendorf (HZDR). Projekt DRESDYN<\/a> (DREsden Sodium facility pro DYNamo a termohydraulick\u00e9 studie) m\u00e1 za c\u00edl ur\u010dit dopl\u0148kov\u00e9 zdroje energie pro zemsk\u00e9 dynamo, planet\u00e1rn\u00ed dynama nebo d\u00e1vn\u00e9 m\u011bs\u00ed\u010dn\u00ed dynamo. Poskytuje novou platformu pro r\u016fzn\u00e9 experimenty s p\u0159\u00edm\u00fdm dopadem na mnoho astrofyzik\u00e1ln\u00edch a geofyzik\u00e1ln\u00edch hydromagnetick\u00fdch probl\u00e9m\u016f. Nejambici\u00f3zn\u011bj\u0161\u00edm experimentem v projektu DRESDYN je v\u00e1lec napln\u011bn\u00fd tekut\u00fdm sod\u00edkem, kter\u00fd se sou\u010dasn\u011b ot\u00e1\u010d\u00ed kolem dvou os. Tento experiment m\u00e1 ov\u011b\u0159it preces\u00ed \u0159\u00edzen\u00e9 toky jako dopl\u0148kov\u00fd zdroj energie pro Geodynamo nebo d\u00e1vn\u00e9 m\u011bs\u00ed\u010dn\u00ed dynamo.<\/p> Na p\u0159\u00edprav\u011b a samotn\u00e9 realizaci experimentu s precesn\u00edm dynamem v r\u00e1mci projektu DRESDYN se pod\u00edl\u00ed J. \u0160imkanin spolu s kolegy F. Stefanim a A. Gieseckem z HZDR. J\u00e1n \u0160imkanin se v p\u0159\u00edpravn\u00e9 f\u00e1zi experimentu v\u011bnoval specifikaci rozsahu parametr\u016f, ve kter\u00fdch je v\u00fdskyt dynama nejpravd\u011bpodobn\u011bj\u0161\u00ed. Testovac\u00ed velk\u00fd vodn\u00ed hydrodynamick\u00fd experiment je napl\u00e1nov\u00e1n na rok 2024 a n\u00e1sledn\u011b hlavn\u00ed experiment s kapaln\u00fdm sod\u00edkov\u00fdm dynamem prob\u011bhne v roce 2025.<\/p> \u00a0<\/p> Schematick\u00fd n\u00e1\u010drt hydromagnetick\u00e9ho gener\u00e1toru v projektu DRESDYN a jeho praktick\u00e1 realizace (zdroj: HZDR)<\/em><\/p> Odkaz na relevantn\u00ed \u010dl\u00e1nky:<\/p>
Pizzi F., Giesecke A., \u0160imkanin J., Stefani F. (2021): Prograde and retrograde precession of a fluid-filled cylinder, New J. Phys., 23, 123016<\/p>\n
Kumar V., Pizzi F., Giesecke A., \u0160imkanin J., Kumar V., Gundrum T., Ratajczak M., Stefani F. (2023): The effect of nutation angle on the flow inside a precessing cylinder and its dynamo action, Phys. Fluids, 35, 014114<\/p>\n